The QVideoEncoderSettings class provides a set of video encoder settings. More...
Header: | #include <QVideoEncoderSettings> |
qmake: | QT += multimedia |
QVideoEncoderSettings() | |
QVideoEncoderSettings(const QVideoEncoderSettings &other) | |
~QVideoEncoderSettings() | |
int | bitRate() const |
QString | codec() const |
QMultimedia::EncodingMode | encodingMode() const |
QVariant | encodingOption(const QString &option) const |
QVariantMap | encodingOptions() const |
qreal | frameRate() const |
bool | isNull() const |
QMultimedia::EncodingQuality | quality() const |
QSize | resolution() const |
void | setBitRate(int value) |
void | setCodec(const QString &codec) |
void | setEncodingMode(QMultimedia::EncodingMode mode) |
void | setEncodingOption(const QString &option, const QVariant &value) |
void | setEncodingOptions(const QVariantMap &options) |
void | setFrameRate(qreal rate) |
void | setQuality(QMultimedia::EncodingQuality quality) |
void | setResolution(const QSize &resolution) |
void | setResolution(int width, int height) |
bool | operator!=(const QVideoEncoderSettings &other) const |
QVideoEncoderSettings & | operator=(const QVideoEncoderSettings &other) |
bool | operator==(const QVideoEncoderSettings &other) const |
The QVideoEncoderSettings class provides a set of video encoder settings.
A video encoder settings object is used to specify the video encoder settings used by QMediaRecorder. Video encoder settings are selected by constructing a QVideoEncoderSettings object, setting the desired properties and then passing it to a QMediaRecorder instance using the QMediaRecorder::setEncodingSettings() function.
QVideoEncoderSettings videoSettings; videoSettings.setCodec("video/mpeg2"); videoSettings.setResolution(640, 480); recorder->setVideoSettings(videoSettings);
See also QMediaRecorder and QVideoEncoderSettingsControl.
Constructs a null video encoder settings object.
Constructs a copy of the video encoder settings object other.
Destroys a video encoder settings object.
Returns bit rate of the encoded video stream in bits per second.
See also setBitRate().
Returns the video codec.
See also setCodec().
Returns the video encoding mode.
See also setEncodingMode() and QMultimedia::EncodingMode.
Returns the value of encoding option.
See also setEncodingOption() and encodingOptions().
Returns the all the encoding options as QVariantMap.
See also encodingOption() and setEncodingOptions().
Returns the video frame rate.
See also setFrameRate().
Identifies if a video encoder settings object is uninitalized.
Returns true if the settings are null, and false if they are not.
Returns the video encoding quality.
See also setQuality().
Returns the resolution of the encoded video.
See also setResolution().
Sets the bit rate of the encoded video stream to value.
See also bitRate().
Sets the video codec.
See also codec().
Sets the video encoding mode.
If QMultimedia::ConstantQualityEncoding is set, the quality encoding parameter is used and bit rate is ignored, otherwise the bitrate is used.
The rest of encoding settings are respected regardless of encoding mode.
See also encodingMode() and QMultimedia::EncodingMode.
Set the encoding option value.
The supported set and meaning of encoding options are system and selected codec specific.
See also encodingOption() and setEncodingOptions().
Replace all the encoding options with options.
The supported set and meaning of encoding options are system and selected codec specific.
See also encodingOptions(), encodingOption(), and setEncodingOption().
Sets the video frame rate.
A value of 0 indicates the encoder should make an optimal choice based on what is available from the video source and the limitations of the codec.
See also frameRate().
Sets the video encoding quality.
Setting the video quality parameter allows backend to choose the balanced set of encoding parameters to achieve the desired quality level.
The quality settings parameter is only used in the constant quality encoding mode. The quality settings parameter is only used in the constant quality encoding mode.
See also quality().
Sets the resolution of the encoded video.
An empty QSize indicates the encoder should make an optimal choice based on what is available from the video source and the limitations of the codec.
See also resolution().
Sets the width and height of the resolution of the encoded video.
This is an overloaded function.
Determines if other is of equal value to a video encoder settings object.
Returns true if the settings objects are not of equal value, and false if they are of equal value.
Assigns the value of other to a video encoder settings object.
Determines if other is of equal value to a video encoder settings object.
Returns true if the settings objects are of equal value, and false if they are not of equal value.